Linear vs logarithmic scales. 1  Human hearing is better measured on a logarithmic scale than a linear scale. 2  On a linear scale, a change between two values is perceived on the basis of the difference between the values.  On a logarithmic scale, a change between two values is perceived on the basis of the ratio of the two values.
Antimony has been known since ancient times. It is sometimes found free in nature, but is usually obtained from the ores stibnite (Sb 2 S 3) and valentinite (Sb 2 O 3). Nicolas Lemery, lÃ©mery A french, chemist was the first person to scientifically study antimony and its. compounds
The atomic weight is close to the number of protons and neutrons in the atom because electrons have very little mass. Lead, abbreviated Pb, is element number 82 with the corresponding atomic weight of 207.2. This is converted to grams using the constant 6.0221419828e+23. Thirty-six elements are heavier than lead, and ununoctium is the heaviest element. Learn more about Measurements